A publishable key (nv_pub_*) was used on a secret-only endpoint. Publishable keys are browser-safe and may only write to the public endpoints listed in Authentication — list, read, delete, and admin operations require a secret key (nv_live_* / nv_test_*).
API_KEY_LIMIT_REACHED
422
Project already has the per-plan maximum of active keys of the requested type. Secret and publishable keys are counted independently. Revoke an unused key of the same type, or upgrade the plan.
Slug is not 1–40 lowercase letters, numbers and hyphens.
SLUG_TAKEN
409
The slug is in use, reserved, or was released by another project in the last 30 days.
PROJECT_LIMIT_REACHED
403
Dashboard only. The account already has as many projects as its plan includes (Free 2, Indie 4, Builder 10).
LAST_PROJECT
409
Dashboard only. An account keeps at least one project, so its only project cannot be deleted.
PROJECT_NOT_FOUND
404
Dashboard only. The project named in X-Nordva-Project, or chosen when approving a CLI sign-in, is not one of this account’s.
SLUG_CHANGE_LIMIT_REACHED
429
The slug was already changed twice in the last 30 days. A project’s first rename, away from the generated slug, is not counted. remediation gives the date it can change again. Old links keep working in the meantime.